Respuesta :

Answer:

X = 39

Step-by-step explanation:

The sum of the angles in any quadrilateral is 360 degrees, so we can add up all of the angles of this ||gram to get the answer:

3x-15+2x+2x+2x+24=360 - Combine like terms

9x+9=360 - isolate the variable

9x=351

x=39